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A solution of nitric acid, water and alcohol, nital, is used for etching metals to reveal the microstructure. ISO 14104 is one of the standards detailing this well known procedure. [45] Nitric acid is used either in combination with hydrochloric acid or alone to clean glass cover slips and glass slides for high-end microscopy applications. [46]
Mixtures of ordinary nitric acid in sulfuric acid therefore contain substantial amounts of water and are unsuitable for processes such as those that occur in the manufacture of trinitrotoluene. The synthesis of RDX and certain other explosives does not require oleum. [10] Anhydrous nitric acid, referred to as white fuming nitric acid, can be ...
Albertus Magnus, in the 13th century, documented the ability of nitric acid to separate gold and silver by dissolving the silver. [8] Indeed silver nitrate can be prepared by dissolving silver in nitric acid followed by evaporation of the solution. The stoichiometry of the reaction depends upon the concentration of nitric acid used.
Another method involves the reaction of urea, nitric acid and sulfuric acid: [54] 2 (NH 2) 2 CO + 2 HNO 3 + H 2 SO 4 → 2 N 2 O + 2 CO 2 + (NH 4) 2 SO 4 + 2 H 2 O. Direct oxidation of ammonia with a manganese dioxide-bismuth oxide catalyst has been reported: [55] cf. Ostwald process. 2 NH 3 + 2 O 2 → N 2 O + 3 H 2 O
Nitroglycerin (NG) (alternative spelling of nitroglycerine), also known as trinitroglycerol (TNG), nitro, glyceryl trinitrate (GTN), or 1,2,3-trinitroxypropane, is a dense, colorless or pale yellow, oily, explosive liquid most commonly produced by nitrating glycerol with white fuming nitric acid under conditions appropriate to the formation of the nitric acid ester.
Nitrosylsulfuric acid is the chemical compound with the formula HSO 4 NO. It is a colourless solid that is used industrially in the production of caprolactam, [3] and was formerly part of the lead chamber process for producing sulfuric acid. The compound is the mixed anhydride of sulfuric acid and nitrous acid.
It is produced by treating limestone with nitric acid, followed by neutralization with ammonia: CaCO 3 + 2 HNO 3 → Ca(NO 3) 2 + CO 2 + H 2 O. It is also an intermediate product of the Odda Process: Ca 5 (PO 4) 3 OH + 10 HNO 3 → 3 H 3 PO 4 + 5 Ca(NO 3) 2 + H 2 O. It can also be prepared from an aqueous solution of ammonium nitrate, and ...
An alternative version of NBR is carboxylated nitrile butadiene rubber (XNBR). XNBR is a terpolymer of butadiene, acrylonitrile, and acrylic acid. [11] The presence of the acrylic acid introduces carboxylic acid groups (RCO 2 H). These groups allow crosslinking through the addition of zinc (Zn 2+) additives. The carboxyl groups are present at ...
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